Locking device for thread clearers



Aug. 15, 1933. s. HYSLOP 1,922,684

LOCKING DEVICE FOR THREAD CLEARERS Filed Oct. 15, 1932 InvenZor: Saint/083 Eg s Z039,

/ fil /Z348 Patented Aug. 15, 1933 v UNITED STATES PATENT OFFICE i I 1,922,684 2 i V LOCKING DEVICE FOR THREAD 'CLEARERS Samuel Hyslop, Newton, Mass. 7 Application October 15, -1992. Serial No. 637,945

3 Claims. (o1. -2s-s4) This invention relates to machines for winding thread or yarn and its object is to provide an improvementupon the construction described in my prior Patents Numbers 1,499,929 and 1,740,242,

designed to prevent breaking of the thread or yarn in certain types of machines when they are started. up. V Referring to the drawing:

Fig. 1 is a face view of my novel thread or yarn 0 clearer;

Fig. 2

tion;

i Fig. 3 a similar view partly in section, showing the collar locking member inoperative position; Fig. 4 a face View of the same;

Figs. 5-6 plans respectively of the collar and ring clearing members; i

Fig; 7. a side elevation of the slot reducing ring and i Fig. 8 a similar view ofsaid member at a right angle totheposition of Fig. 7..

Referring to Figs. 1 to 4 of the drawing, my novel slub catcher comprises a base 1 of suitable material, herein substantiallyrectangular in outline, and of metal.

k The base has, at a suitable. point thereon, any

convenient means 2 for .lockingit to the rail or. rod 3, to which such devices are usually secured, of a winding machine, not shown. 'IhebasepFigs. 1, 2, mayrbeprovided with a suitable number, herein two, of yarn guides 4 .of any desired construction. The slub catching ele-.- ments proper hereincomprise first (Figs. 1, 4, 5, 6) a ring with an arm 6 thereon and by which 33 'it is mounted for limited swinging motion about a post 7 in the base,'the hole 8 in the arm being slightly oblong to provide also limited lateral motion as will be described; The rotary motion of i the ring is limited, Figs. 1, 4, byapin 9 depending from the bottom of the ring and moving in a slot 10 in the edge of the base. The cooperating slub catcher is shown as a collar 11 with an arm 12 and hole 13 therein by means of which it is also mounted forlimited swinging action on its post 14, the hole 13 being also slightly oblong for cooperative movement with the ring 5. The member 5 carries ofiset inwardly therefrom when assembled, and within the collar 11, two radially positioned curved posts 15, these posts and the collar 11 being slotted vertically at 16, 17 respectively to register with each other and provide a path'therethrough for the yarn 18.

The collar 11 and ring 5 are retained on their posts Fig. 1, by a locking memberin the shape a side view thereof in operative posiof an arm 19 pivoted in the base 1 and capable of being turned about its pivot and to overhang the end of the arm 12.

Practically all of the Wool and much-of the cottonand silk used for thread and yarn has a small amount of oil and other substances worked into it to enable it to be 'used conveniently in spinning and winding under unfavorable atmos- I pheric conditions, which-would otherwise cause very serious difliculties. There is also considerable lint and dust always present near these machines, when running- If the two thread clearing members corresponding to the numbers 5, 11 herein are constructed as in my United States Patents Nos. 1,499,929 and 1,740,242, while they are very effective, nevertheless their efiiciency is aifected by the accumulation, of oily dust and lint on the two members 7, 9 and 11, 12respectively in said patents, becausethey fit so closely one within the other as to form substantially one flat surface with no clearance.

To obviate this difiiculty, I have. devised the construction herein shown; where one of the threadreceiving' members, the post '15,.is rela tively narrow or thin in cross-section, and of a radiusshorter than that of the'collar 11, so that the post and collar are not closely positioned ad- "jacent each other except at one point, the

exact point of locationof the thread-slots. I This feature provides a wedge-shaped space 20 adjacent. each side of each slot in the-collar and posts by means of which the oily dust and. lint very readily escape from. the vicinity of the slots 16, 17, on the collar and posts without interfering with their free operation.

I The generous size of the collar 11 also permits the fingers to be inserted therein, if desired, and a small brush, to clean dust and lint therefrom if, by any chance, they should collect therein, to a substantial degree.

When Fig. 1, a slub or other thread or yarn imperfection in its upward travel approaches and contacts with the lower side of the collar 11,

the pull of the machine causes the collar 11 and ring 5 and its posts to move about their pivots 7,.

14, close the respective ring and collar slots and break the thread. The operator then reties the thread and the machine again is started.

The slots in the collar 11 and post 15 are usu- I fit over the arm 12 of the collar 11 to 1101s in proper slot registering relation the extra collar 21 and the collar 11.

In some winding machines, the rail or rod 3, carrying the slubcatchers is pivoted to the front of the machine and, when the thread breaks, it releases a drop wire or stop motion device (not shown) which thereupon permits the slub catcher rail with its slub catchers to drop downwardly and forwardly to substantially an upright position'Fig. 1, on the machine, as the latter stops.

When this type of machine starts, it does so with a quick motion and the rail 3 with its slub catchers is thrown upwardly and rearwardly to substantially the position of Fig. 2, in a curved path, with a jerk which is suflicient-to cause the collar 11 and ring 5 to swing upwardlyabout their pivots and close the thread slots, and again break the thread before the machine gets well under way.

To obviate'this difficulty, I-have devised the novel construction which I will describe. Just above the collar 11 there is mounted, as in ears 24 on the base 1, a locking device comprising a rod 25 with anoffset section; 26 formed therein between the-ears 22, while on one end of the rod is a crank 27 carrying aweight, asa ball 28.

In the normal position of the clearer, Fig.2, theweight will remain in raisedposition and the offset or collar locking section 26' on the rod will also be raised; When, however, the rail with its clearers drops, as described upon the breakingof a thread, the weight 28 swings forward, and throws. the offset section 26 down upon the collar 11,. the locking position, Fig. 4, looking it and the ring 5 against movement about their pivots.

After the thread has been tied and. when the rail and its clearers are again thrown upward into operative positionas described, this action causes. the weight28 to swing upward and backward to its normal position, Figs. 2, 3-, but

the weight does notrleave its position upon the collar 11 until the clearer has reached the end of its travel up the curved path'to position of Figs. 2, 3, and the shock which would tend to swing the collar 11 and-ring 5 "upon-their pivots, is over, so that there is no opportunity for the collar and ring to move about their pivots and again close the thread slots and break the thread. l D

This automatically acting collar 'andring lockingdevice is very useful and addsalvery much to the effectiveness of the clearer on the type of machine referred to. l

tive position.

The thread slot changing collar 21 which is sometimes applied to the collar 11, as described, has its rear circumferential edge cut away, Fig. 8, at 29 to permit the oifset section 26 of the rod 25 to rest on the collar 11 and operate as usual. a

My invention is not restricted to the precise embodimentthereof herein described and illustrated.

I claim: I l

1. A thread clearer comprising a base, means to lock it to a machine, a clearing collar, and a clearing ring rnovably mounted on the base, the ring having upstanding segmental posts at circumferentially opposite points thereon, registeringthread slots in the collar and postsjthe collar and ring. adapted to be swung out of registering position to clamp the thread when engaged by an imperfection on the thread, and collar locking means to lock the collar against swinging motion during travel of the thread look the collar against thread clamping motion during travel of the thread clearer to opera- 3. A thread clearer comprising a base, a clearing collar and a clearing ring concentrically positioned thereon, the ring carrying posts concentrically positioned relative to the collar but haviing surfaces non-concentrically positionedrelative thereto, the collar and ring eccentrically movably. mounted on the base with'registering thread slots, the collar and ring movable :5

out of slot registering relation by engagement therewith of an imperfect thread, and a rod with a collar holding portion thereon to normally hold the collar against swinging action and keep the thread slots open while the thread clearer is traveling 'to operative position from inoperative position. 1

. I SAMUEL HYSLOP. 

